CODEWITHSUNDEEP
androidkotlin
rickster26ter1
rickster26ter1

Reputation: 433

Kotlin - Map integers to lists of lists

I am trying to find the proper syntax to initialize "Map<,<List<List>>>" in kotlin. I am a bit new to kotlin. I have variables initialized in my class as this:

var jitterMs: Double = 0.0

The way I am trying to initialize is this:

val bandMap: Map<Int,<List<List<String>>>> = emptyMap()

It gives me an error that a proper getter or setter is expected, and I think that's because it just doesn't understand what I am trying to do. What is wrong with this syntax?

Thanks,

Edit: As Tenfour pointed out, I actually want a mutable map. This is what I have now as an error saying there is a type error:

val bandMap: MutableMap<Int,List<List<String>>> = emptyMap()

Upvotes: 0

Views: 619

Answers (2)

Izak
Izak

Reputation: 991

This is how you would do it:

val bandMap: Map<Int, List<List<String>>> = emptyMap()

For a MutableMap write the following:

val bandMap: MutableMap<Int, List<List<String>>> = mutableMapOf()

Or, for the most idiomatic way to make a mutableMap would be:

val bandMap = mutableMapOf<Int, List<List<String>>>()

Upvotes: 2

iamanbansal
iamanbansal

Reputation: 2732

val bandMap: Map<Int,List<List<String>>> = emptyMap()

This will work. You added extra < >

Upvotes: 0

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